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Prase Opal
Prase Opal

Polyhalite
Polyhalite



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Prase Opal
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Polyhalite

Prase Opal and Polyhalite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
Brittle
Soluble
-
2.78
Conchoidal
Perfect on {10 1 }; parting on {010}
3.5
K2Ca2Mg(SO4)4·2H2O

Prase Opal and Polyhalite Chemical Formula

While comparing Prase Opal and Polyhalite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Prase Opal and Polyhalite chemical formula.

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Prase Opal and Polyhalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prase Opal and Polyhalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prase Opal Vs Polyhalite during the identification of gemstone. Specific gravity of Prase Opal is whereas that of Polyhalite is .